Shingle-machine



UNITED STATES PATENT @li FFIC.

WILLIAM STODDARD, OF LOWELL, MASSACHUSETTS.

SHINGLE-MACI-IINE.

To all whom t may concern Be it known that I, IVILLIAM S'roDDARD, ofLowell, in the county of Middlesex and State of Massachusetts, haveinvented certain new and useful Improvements in Machines for Rifting andPlaning Shingles, and that the following description, taken inconnection with the accompanying drawings hereinafter referred to, forma full and exact specification of the same, wherein I have set forth thenature and principles of my invention by which it may be distinguishedfrom others of a similar class, together with such parts as I claim anddesire to have secured to me by Letters Patent.

The figures of the accompanying drawings represent my improvements.

Figure l, is a top view of my shingle machine. Fig. 2, is a side andsectional view of the same. Fig. 3 is a front end view, and Fig. L isview of the under side of my machine.

I will now proceed to describe its operation and construction; which isas follows; viz l A, A, A is the framework, B is the driving shaft, andC the driving pulley.

D, D, are small gears on the driving shaft B, operating on the crankgears E, E, on the lower roller shaft F. The connecting rods Gr, G, areattached at one end to the gears E, E, and at the other end to the crossbar I-I; the driving plate I, being attached to the cross bar H, andguided by the guide rails J, J. The guide rails J, J, are attached tocross bars and fastened to the frame work A, A. The rifting knife K,being attached by means of the springs L, L, to the driving plate I. Theknife K being raised tothe right height to split the piece for theshingle by means of inclined planes M, M, and passing forward so as toclear the front end of the block, thus enabling the block to fall on tothe driving plate I. The rifting knife K, being at the required heightto split the piece from the block, is now carried through the block bythe backward motion of the driver I, to the back end of the block; whenthe short driver N comes forward and pushes the piece split 0E for theshingle, forward of the back of the knife K, when it drops down on tothebed piece O, in front of the driving plate I. The short driver N, isguided by the side plates P, P, the lever Q, being attached to thedriver N, at one end, and to a projection R at the other end; saidprojection being fastened to the guide rail J 5 the connecting rod S,being fastened to the lever Q, a suiiicient distance from the fulcrum ofthe lever to give the motion required to the driver N. The other end ofthe rod S, being bent at right angles plays in the grooves made in thegears E, on the inside, the connecting rod S being held in its properplace by a swinging arm T, attached to the rod S, atV one end, and t0the guide piece U, at the other end. The piece split fro-m the blockbeing now in front of the driver I, on the bed piece O, is now broughtforward by the driver I, and passes under the mouth piece V, this piecebeing to throw the winding corner below the center of the top roll W,t-he piece passes through between the pressure rolls IV, and X, theserolls working up and down in grooves in the guide pieces U, U. There isalso a rod Y, connected at each end of each roll, at one end, and at theother end, to the lever Z. The lever Z, being fastened on a rockingstand attached to the guide pieces U, U, one of the rods Y, beingconnected with the lever Z, one side of the stand, and the other onealso to the lever Z, at the same distance the other side of the stand ateach end of the rolls. When the piece passes between the rolls, itpresses the spring a, up; and the unevenness of the surface of the piecewill open the rolls, always keeping the center of the piece for theshingle exactly between the cutters Z), Z); any unevenness in the piece,on either side throwing the roll over it without changing the directionof the said piece so as to have the knives or cutters b, Z), take anequal shaving` from each side of the shingle. The knives o, are boltedto slide pieces c, 0, o, o, working in the guides U, U; the slide piecesc, c, c, c, being operated upon by connecting rods d, CZ, CZ, (Z, oneend of which are fastened to the slides and the other end fastened tothe rockers e, e; the rods CZ, cl, d, d, being connected with therockers e, e, at equal distances each side of the center of the rockershaft f, upon which the rockers, e, e, are placed. One end of the rockere extends beyond the rods and is connected with the eccentric rod g, ascrew being placed in the lower end of the rod g, to lengthen ordiminish the length so as to give any required thickness to the shingle.This screw being made with an eye in its head so as to admit a boltwhich is used to connect it with the rocker lever, which has a number ofholes in it to change the bevel of the shingle, the eccentric beingplaced on the lower roller shaft F.

The object of attaching the rifting knife K, to the elastic arms L, L,is to enable the knife to follow the grain of the wood in riving ashingle, and also to relieve itself when it comes in Contact with agnarly place in the wood.

Having thus fully described my improved shingle machine, what I claimtherein as new and desire to secure by Letters Patent, 1s-

l. The combination of the rift-ing knife K (connected with the maindriver I, by means of the elastic arms L, L,) with the inclined planesM, M, placed upon the rails J, J, as described; for the purpose ofenabling the knife to be carried forward under the block during theforward movement of the said driver, and then be elevated to the properheight to split o a shingle during its return movement, substantially asherein set forth.

2. I also claim the arrangement of secondary driver N, placed above andacting independently of the main driver I, in such a manner that it willdrive the rived shingle from under the block and deposit it upon the bedO, forward of the main driver, in such a position that it will becarried forward to be dressed during the forward movement of the saiddriver, substantially as set forth.

WILLIAM STODDARD. Signed in presence of- JONA. LADD, FRANK HoLT.

